<template>
	<div>
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>用户管理管理</el-breadcrumb-item>
			<el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片 -->
		<el-card>
			<!-- gutter:col之间的间隔 -->
			<el-row :gutter="20">
				<el-col :span="8">
					<!-- 搜索与添加区域 -->
					<el-input clearable @clear="getUserList" placeholder="请输入内容" v-model="queryInfo.query">
						<el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible = true">
						添加用户
					</el-button>
				</el-col>
			</el-row>
			<el-table :data="userlist" border stripe>
				<el-table-column type="index">
				</el-table-column>
				<el-table-column label="姓名" prop="username">
				</el-table-column>
				<el-table-column label="邮箱" prop="email">
				</el-table-column>
				<el-table-column label="电话" prop="mobile">
				</el-table-column>
				<el-table-column label="角色" prop="role_name">
				</el-table-column>
				<el-table-column label="状态" prop="mg_state">
					<template slot-scope="scope">
						<el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
						</el-switch>
					</template>
				</el-table-column>
				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<!-- 编辑 -->
						<el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
						<!-- 删除 -->
						<el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
						<!-- 分配角色 -->
						
						<el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
						      <el-button @click="setRole(scope.row)" type="warning" icon="el-icon-setting" size="mini"></el-button>
						    </el-tooltip>
					</template>
				</el-table-column>
			</el-table>
			
			<!-- 分页 -->
			 <el-pagination
			      @size-change="handleSizeChange"
			      @current-change="handleCurrentChange"
			      :current-page="queryInfo.pagenum"
			      :page-sizes="[2, 5, 10, 20]"
			      :page-size="queryInfo.pagesize"
			      layout="total, sizes, prev, pager, next, jumper"
			      :total="total">
			    </el-pagination>
		</el-card>
		<!-- 添加用户对话框 -->
		<el-dialog
		  title="添加用户"
		  :visible.sync="addDialogVisible"
		  width="50%" @close="addDialogClosed">
			<!-- 内容主体 -->
		  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
		    <el-form-item label="用户名" prop="username">
		      <el-input v-model="addForm.username"></el-input>
		    </el-form-item>
				<el-form-item label="密码" prop="password">
				  <el-input v-model="addForm.password"></el-input>
				</el-form-item>
				<el-form-item label="邮箱" prop="email">
				  <el-input v-model="addForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
				  <el-input v-model="addForm.mobile"></el-input>
				</el-form-item>
				</el-form>
			<!-- 底部区域 -->
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="addDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="addUser">确 定</el-button>
		  </span>
		</el-dialog>
		<!-- 修改对话框 -->
		<el-dialog
		  title="修改用户"
		  :visible.sync="editDialogVisible"
		  width="50%" @close="editDialogClosed">
			<!-- 内容主体 -->
		  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
		    <el-form-item label="用户名">
		      <el-input v-model="editForm.username" disabled></el-input>
		    </el-form-item>
				<el-form-item label="邮箱" prop="email">
				  <el-input v-model="editForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
				  <el-input v-model="editForm.mobile"></el-input>
				</el-form-item>
				</el-form>
			<!-- 底部区域 -->
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="editDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="editUserInfo">确 定</el-button>
		  </span>
		</el-dialog>
		<!-- 分配角色对话框 -->
		<el-dialog
		  title="分配角色"
		  :visible.sync="setRoleDialogVisible"
		  width="50%"
			@close="setRoleDialogClosed">
		  <div>
		  	<p>当前的用户：{{userinfo.username}}</p>
				<p>当前的角色：{{userinfo.role_name}}</p>
				<p>分配新角色：
					<el-select v-model="selectedRoleId" placeholder="请选择">
					    <el-option
					      v-for="item in rolesList"
					      :key="item.id"
					      :label="item.roleName"
					      :value="item.id">
					    </el-option>
					  </el-select>
				</p>
		  </div>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
		  </span>
		</el-dialog>
	</div>
</template>

<script>
	export default {
		data() {
			//验证邮箱
			let checkEmail = (rule,value,callback) => {
				const regEmail = /^([a-zA-Z0-9_-])+@([A-Za-z0-9_-])+(\.[a-zA-Z0-9_-])+/
				if(regEmail.test(value)){
					return callback()
				}
				callback(new Error('请输入合法的邮箱'))
			}
			//验证手机号
			let checkMobile = (rule,value,callback) => {
				const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
				if(regMobile.test(value)){
					return callback()
				}
				callback(new Error('请输入合法的手机号'))
			}
			return {
				selectedRoleId:'',
				//需要被分配角色的用户信息
				userinfo:{},
				rolesList:[],
				queryInfo: {
					query: '',
					pagenum: 1,
					pagesize: 2
				},
				userlist: [],
				total: 0,
				//控制添加用户对话框的显示与隐藏
				addDialogVisible:false,
				//控制修改用户对话框的显示与隐藏
				editDialogVisible:false,
				setRoleDialogVisible:false,
				//添加用户的表单数据
				addForm: {
					username:'',
					password:'',
					email:'',
					mobile:''
				},
				//查询到的用户信息对象
				editForm: {},
				addFormRules:{
					username: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入用户名',trigger:'blur'},
						{min:3,max:10,message:'用户名在长度3-10个字符之间',trigger:'blur'}
					],
					password: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入密码',trigger:'blur'},
						{min:6,max:15,message:'用户名在长度6-15个字符之间',trigger:'blur'}
					],
					email: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入邮箱',trigger:'blur'},
						{validator:checkEmail,trigger:'blur'}
					],
					mobile: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入手机号',trigger:'blur'},
						{validator:checkMobile,trigger:'blur'}
					]
				},
				editFormRules:{
					email: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入邮箱',trigger:'blur'},
						{validator:checkEmail,trigger:'blur'}
					],
					mobile: [
						//'blur':失去焦点时触发
						{required:true,message:'请输入手机号',trigger:'blur'},
						{validator:checkMobile,trigger:'blur'}
					]
				},
			}
		},
		created() {
			this.getUserList()
		},
		methods: {
			async getUserList() {
				const {
					data: res
				} = await this.$http.get('users', {
					params: this.queryInfo
				})
				if (res.meta.status !== 200) return this.$message.error('获取用户失败')
				console.log(res);
				this.userlist = res.data.users
				this.total = res.data.total
			},
			//监听改变pagesize
			handleSizeChange(newSize){
				this.queryInfo.pagesize = newSize
				this.getUserList()
			},
			//监听处理页码改变
			handleCurrentChange(newPage){
				this.queryInfo.pagenum = newPage
				this.getUserList()
			},
			//监听switch开关状态的改变
			async userStateChanged(userinfo){
				console.log(userinfo);
				const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
				if (res.meta.status !== 200) {
					userinfo.mg_state = !userinfo.mg_state
					return this.$message.error('更新用户状态失败')
				}
				this.$message.success('更新用户状态成功')
			},
			//监听添加用户对话框的关闭事件
			addDialogClosed(){
				this.$refs.addFormRef.resetFields()
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed(){
				this.$refs.editFormRef.resetFields()
			},
			//添加用户确定
			addUser(){
				this.$refs.addFormRef.validate(async valid => {
					if(!valid) return
					//添加用户请求
					const {data:res} = await this.$http.post('users',this.addForm)
					if (res.meta.status != 201) {
						this.$message.error('添加用户失败')
					}
					this.$message.success('添加用户成功')
					this.addDialogVisible = false
					this.getUserList()
				})
			},
			//修改用户对话框显示
			async showEditDialog(id){
				const {data:res} = await this.$http.get('users/'+id)
				if (res.meta.status != 200) {
					this.$message.error('获取用户失败')
				}
				this.editForm= res.data
				this.editDialogVisible = true
			},
			//修改用户信息
			editUserInfo(){
				this.$refs.editFormRef.validate(async valid => {
					if(!valid) return
					const {data:res} = await this.$http.put('users/'+this.editForm.id,{
						email:this.editForm.email,
						mobile:this.editForm.mobile
					})
					if (res.meta.status != 200) {
						this.$message.error('修改用户信息失败')
					}
					this.editDialogVisible = false
					this.getUserList()
					this.$message.success('修改用户信息成功')
				})
			},
			async removeUserById(id){
				const confirmResult = await this.$confirm('此操作将永久删除该文用户, 是否继续?', '提示', {
				          confirmButtonText: '确定',
				          cancelButtonText: '取消',
				          type: 'warning'
				        }).catch(err => err)
				//如果用户确认，则返回值是confirm
				//取消则是cancel
				console.log(confirmResult);
				if (confirmResult !== 'confirm'){
					return this.$message.info('已经取消删除')
				}
				const {data:res} = await this.$http.delete('users/'+ id)
				if (res.meta.status !== 200) {
					this.$message.error('删除用户失败')
				}
				this.getUserList()
				this.$message.success('删除用户成功')
			},
			//展示分配角色的对话框
			async setRole(userinfo){
				this.userinfo = userinfo
				//获取角色列表
				const {
					data: res
				} = await this.$http.get('roles')
				if (res.meta.status !== 200) {
					return this.$message.error('获取角色列表失败')
				}
				this.rolesList = res.data
				this.setRoleDialogVisible = true
			},
			async saveRoleInfo(){
				if(!this.selectedRoleId){
					return this.$message.error('请选择要分配的角色')
				}
				const {
					data: res
				} = await this.$http.put(`users/${this.userinfo.id}/role`,{rid:this.selectedRoleId})
				if (res.meta.status !== 200) {
					return this.$message.error('更新角色失败')
				}
				this.$message.success('更新角色成功')
				this.getUserList()
				this.setRoleDialogVisible = false
			},
			setRoleDialogClosed(){
				this.selectedRoleId = ''
				this.userinfo = {}
			}
		}
	}
</script>

<style lang="less" scoped>
	.el-breadcrumb {
		margin-bottom: 15px;
		font-size: 14px;
	}

	.el-card {
		box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15);
	}

	.el-table {
		margin-top: 15px;
		font-size: 13px;
	}
	.el-pagination{
		margin-top: 15px;
	}
</style>
